全文获取类型
收费全文 | 1572341篇 |
免费 | 124945篇 |
国内免费 | 24133篇 |
专业分类
耳鼻咽喉 | 19206篇 |
儿科学 | 44247篇 |
妇产科学 | 39749篇 |
基础医学 | 227505篇 |
口腔科学 | 40068篇 |
临床医学 | 161547篇 |
内科学 | 293796篇 |
皮肤病学 | 30219篇 |
神经病学 | 119387篇 |
特种医学 | 58411篇 |
外国民族医学 | 478篇 |
外科学 | 210116篇 |
综合类 | 75260篇 |
现状与发展 | 79篇 |
一般理论 | 587篇 |
预防医学 | 123130篇 |
眼科学 | 37335篇 |
药学 | 124451篇 |
340篇 | |
中国医学 | 19364篇 |
肿瘤学 | 96144篇 |
出版年
2022年 | 14442篇 |
2021年 | 25323篇 |
2020年 | 17834篇 |
2019年 | 20569篇 |
2018年 | 24673篇 |
2017年 | 20142篇 |
2016年 | 20461篇 |
2015年 | 27103篇 |
2014年 | 35406篇 |
2013年 | 42380篇 |
2012年 | 59646篇 |
2011年 | 65068篇 |
2010年 | 38596篇 |
2009年 | 34155篇 |
2008年 | 54220篇 |
2007年 | 56862篇 |
2006年 | 56496篇 |
2005年 | 55434篇 |
2004年 | 47794篇 |
2003年 | 45383篇 |
2002年 | 43012篇 |
2001年 | 62943篇 |
2000年 | 64808篇 |
1999年 | 56687篇 |
1998年 | 18723篇 |
1997年 | 17607篇 |
1996年 | 16899篇 |
1995年 | 15774篇 |
1994年 | 14257篇 |
1993年 | 12450篇 |
1992年 | 40868篇 |
1991年 | 39951篇 |
1990年 | 38456篇 |
1989年 | 37016篇 |
1988年 | 34186篇 |
1987年 | 33265篇 |
1986年 | 31558篇 |
1985年 | 29633篇 |
1984年 | 22425篇 |
1983年 | 19532篇 |
1979年 | 21145篇 |
1978年 | 15462篇 |
1977年 | 12868篇 |
1975年 | 12867篇 |
1974年 | 15675篇 |
1973年 | 15433篇 |
1972年 | 14578篇 |
1971年 | 13592篇 |
1970年 | 12835篇 |
1969年 | 12099篇 |
排序方式: 共有10000条查询结果,搜索用时 531 毫秒
91.
92.
93.
94.
95.
The objective of this study was to investigate short segment decompression of degenerative lumbar scoliosis (DLS) and the efficiency of fusion treatment.After DLS surgery, the patients were retrospectively reviewed using the VAS (visual analog scale) and ODI (Oswestry Disability Index) to assess clinical outcomes. All patients underwent posterior lumbar decompressive laminectomy, pedicle screw internal fixation, and posterolateral bone graft fusion surgery. Radiographic measurements included the scoliotic Cobb angle, the fused Cobb angle, the anterior intervertebral angle (AIA), the sagittal intervertebral angle (SIA), and lumbar lordosis angle. The relationships between these parameters were examined by bivariate Pearson analysis and linear regression analysis.Preoperatively, the Cobb angle at the scoliotic segment was 15.4°, which decreased to 10.2° immediately following surgery (P < 0.05). The AIA significantly increased by the last follow-up (4.4 ± 3.4) compared with pre- and postoperative values (2.5 ± 2.8 and 2.2 ± 2.4, respectively; P < 0.05). However, the scoliotic Cobb angle and the AIA did not correlate with the VAS or ODI scores. At the final follow-up, no patients had pseudoarthrosis or internal instrumentation-related complications.Short fusion surgical treatment results in limited DLS correction, with correction loss over time. The AIA between the upper adjacent segment and proximal fused vertebra continues to increase postoperatively, which does not exacerbate clinical symptoms, as reflected by the low reoperation rates for repairing degeneration at adjacent levels. 相似文献
96.
Sophocarpine attenuates toll‐like receptor 4 in steatotic hepatocytes to suppress pro‐inflammatory cytokines synthesis 下载免费PDF全文
97.
98.
99.
Michelle E. Wilson Charles Kim Jacqueline Carrasco 《Orbit (Amsterdam, Netherlands)》2016,35(5):288-291
A 48-year-old smoker with a history of hyperthyroidism treated 10 years prior to presentation with radioactive iodine ablation of the thyroid gland presented to his ophthalmologist with a 2-week history of transient loss of vision in the right eye occurring for 1 to 2 hours each morning. He denied ocular pain, diplopia or change in the prominence of one or both eyes. Examination revealed 2 mm of relative proptosis on the right, bilateral temporal flare and lower lid retraction. There was minimal upper lid retraction and no evidence of lid lag. Ocular motility was full. Dilated fundoscopic examination revealed bilateral optic nerve edema, right more than left. CT of the orbit demonstrated enlargement of the extraocular muscles bilaterally with marked enlargement of the right medial rectus and left inferior rectus muscles resulting in crowding at the orbital apex bilaterally. Laboratory testing revealed the patient to be hyperthyroid. The patient was treated with high dose oral steroids followed by orbital radiation. Hyperthyroidism was managed by the patient’s primary care physician. Visual symptoms rapidly improved with oral steroids and orbital radiation. Optic nerve edema completely resolved. Repeat CT imaging demonstrated a reduction in the enlargement of the extraocular muscles with relief of bilateral optic nerve compression. 相似文献
100.